| Callaway to Robertsville (New Jersey) | 947.63 mi (1,525.07 km) |
| Callaway to Robinson (Texas) | 691.97 mi (1,113.62 km) |
| Callaway to Robstown (Texas) | 749.45 mi (1,206.12 km) |
| Callaway to Rochester (Michigan) | 877.65 mi (1,412.44 km) |
| Callaway to Rochester (Minnesota) | 1,031.19 mi (1,659.53 km) |
| Callaway to Rochester (New Hampshire) | 1,212.54 mi (1,951.39 km) |
| Callaway to Rochester (New York) | 1,001.15 mi (1,611.20 km) |
| Callaway to Rochester Hills (Michigan) | 875.84 mi (1,409.52 km) |
| Callaway to Rock Hill (South Carolina) | 424.14 mi (682.59 km) |
| Callaway to Rock Island (Illinois) | 831.86 mi (1,338.76 km) |
| Callaway to Rock Springs (Wyoming) | 1,535.88 mi (2,471.75 km) |
| Callaway to Rockford (Illinois) | 860.04 mi (1,384.10 km) |
| Callaway to Rockledge (Florida) | 316.52 mi (509.40 km) |
| Callaway to Rocklin (California) | 2,104.63 mi (3,387.08 km) |
| Callaway to Rockport (Texas) | 710.04 mi (1,142.70 km) |
